Acetic acid (S)-1-ethyl-hept-2-ynyl ester | 129571-77-3

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: Acetic acid (S)-1-ethyl-hept-2-ynyl ester
• CAS: 129571-77-3
• 化学式: C₁₁H₁₈O₂
• 分子量: 182.263
• InChiKey: KXDSZSFXJRBUMQ-NSHDSACASA-N

物化性质

• 沸点：
  244.1±23.0 °C(Predicted)
• 密度：
  0.923±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.52
• 重原子数：
  13.0
• 可旋转键数：
  4.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.73
• 拓扑面积：
  26.3
• 氢给体数：
  0.0
• 氢受体数：
  2.0

反应信息

• 作为产物：
  描述：

  乙酸乙烯酯 、 4-nonyn-3-ol 在 Novozym 435 作用下， 反应 11.7h， 以43%的产率得到(S)-(-)-4-nonyn-3-ol
  参考文献：
  名称：

  末端烯丙醇的一般方法

  摘要：

  摘要 我们已经证明了一种非常通用的方法，可以从相应的炔醇制备基本上任何末端的2,3-丙烯醇，可以很容易地从炔丙醇中通过烷基化获得，也可以从末端炔烃中通过去质子化和与醛的1,2-加成反应轻松获得。酮，以及随后的碱催化的三键迁移。 我们已经证明了一种非常通用的方法，可以从相应的炔醇制备基本上任何末端的2,3-丙烯醇，可以很容易地从炔丙醇中通过烷基化获得，也可以从末端炔烃中通过去质子化和与醛的1,2-加成反应轻松获得。酮，以及随后的碱催化的三键迁移。

  DOI：

  10.1055/s-0032-1317949

文献信息

• Kinetic resolutions of chiral unsaturated alcohols that cannot be resolved efficiently via enantioselective epoxidation
  作者：Kevin Burgess、Lee D. Jennings

  DOI：10.1021/ja00176a076

  日期：1990.9
• Studies on Pd(II)-Catalyzed Synthesis of (<i>Z</i>)-α-Haloalkylidene-β-lactones from Cyclocarbonylation of 2-Alkynols and the Subsequent Coupling Reactions
  作者：Shengming Ma、Bin Wu、Xuefeng Jiang、Shimin Zhao

  DOI：10.1021/jo0480038

  日期：2005.4.1

  A good regio- and stereoselectivity was observed for the PdCl2-catalyzed cyclocarbonylation of 2-alkynols with CuCl2 affording (Z)-alpha-chloroalkylidene-beta-lactons. The highly optically active (Z)-alpha-chloroalkylidene-beta-lactones could be easily prepared from the readily available optically active propargylic alcohols. The Pd(II)-catalyzed cyclocarbonylation of 2-alkynols with CuBr2 was also studied. Although the yields of (Z)-alpha-bromoalkylidene-beta-lactones were low, due to the relatively higher activity of the C-Br bond, the coupling reactions of (Z)-alpha-bromoalkylidene-beta-lactones were quite smooth to afford the corresponding products in high yields. A rationale for this reaction is discussed.
• Enantioselective esterifications of unsaturated alcohols mediated by a lipase prepared from Pseudomonas sp
  作者：Kevin Burgess、Lee D. Jennings

  DOI：10.1021/ja00016a032

  日期：1991.7

  Competition experiments and measurements of enantioselectivities were used to develop a simple active-site model (Figure 1) for resolutions of beta-hydroxy-alpha-methylene carbonyl compounds III via acyl transfers mediated by lipase from Pseudomonas sp. (AK). Further experiments were used to test and refine this model with respect to resolutions of allylic, propargylic, homopropargylic, and other alcohols (Tables I-IV, respectively). The model proved extremely reliable for predicting the sense of the asymmetric induction, and the combined data collected in this paper give an indication of what structural features of the substrates can be correlated with high enantioselectivities in these resolutions. Furthermore, the results account for the conspicuous reversal of enantioselectivity previously observed in resolutions of gamma-hydroxy-alpha,beta-unsaturated esters 35. Kinetic resolutions of two substrates (allenol 14 and dienol 9) via asymmetric epoxidations were performed for comparison with the methodology presented in this paper.